I moved out of my house august 2014 and thought i had settled both electricity and gas in october when after hassling them they finally produced a bill. Thought it was all settled but it turns out they had not settled the gas. They omitted to mention that. Why on earth i would settle one and not the other is beyond me. In January!! yes 6 months later, i got a bill for £40 (interestingly it was dated may 2011) i was way working for the first three months so got back to messages from a debt collection agency which was the first i heard about it Just spoke to npower who would only reduce it by £25 instead of wiping as any normal company would have done after being 6 months late with a bill - just paid it but will put this story on as many websites as possible so people understand how incompetent and inept this company is. Avoid them at all costs.